diff --git a/EGnFileUtils.h b/EGnFileUtils.h
index 926fddd..244bec3 100644
--- a/EGnFileUtils.h
+++ b/EGnFileUtils.h
@@ -29,6 +29,7 @@ EGN_EXPORT bool ExistsFile( const std::string& sFile) ;
 EGN_EXPORT bool CopyFileEgt( const std::string& sFile, const std::string& sNewFile) ;
 EGN_EXPORT bool RenameFile( const std::string& sFile, const std::string& sNewFile) ;
 EGN_EXPORT bool EraseFile( const std::string& sFile) ;
+EGN_EXPORT bool CompareFilesLastWriteTime( const std::string& sFile1, const std::string& sFile2, int& nRes) ;
 EGN_EXPORT std::string ChangeFileExtension( const std::string& sFile, const std::string& sNewExt) ;
 EGN_EXPORT bool FileExtensionMatches( const std::string& sFile, const std::string& sExt) ;
 EGN_EXPORT bool FindFirstFileEgt( const std::string& sFileSpec, std::string& sFileName) ;